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Related Concept Videos

Bones of the Lower Limb: Femur and Patella01:16

Bones of the Lower Limb: Femur and Patella

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The femur is the body's longest and strongest bone spanning the thigh region. Its head articulates with the acetabulum of the hip bone to form the hip joint. A minor indentation on the medial side of the femoral head, called the fovea capitis, serves as the site of attachment for the ligament of the head of the femur. This weak ligament spans the femur and acetabulum and supports the hip joint. The narrowed region below the head is the neck of the femur. The inclination angle between the...
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Knee Joint01:23

Knee Joint

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The knee joint is the most complicated joint in the body. It consists of three articulations– two tibiofemoral and one patellofemoral. As is characteristic of synovial joints, the knee joint has a thin articular capsule that partially surrounds this joint cavity. Additionally, several ligaments, muscles, and cartilaginous structures support the movement of the knee.
A total of seven ligaments support the knee joint. The patellar ligament, which is also attached to the quadriceps femoris...
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Sandwich Technique for Large Osteochondral Lesions of the Knee.

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No healing improvement after rotator cuff reconstruction augmented with an autologous periosteal flap.

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Harvesting the tendon of the rectus femoris muscle as a graft for reconstructive ligament surgery on the knee joint.

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Related Experiment Video

Updated: Mar 8, 2026

Treatment of Ankle Osteoarthritis with Total Ankle Replacement Through a Lateral Transfibular Approach
09:01

Treatment of Ankle Osteoarthritis with Total Ankle Replacement Through a Lateral Transfibular Approach

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[Patellofemoral arthroplasty].

M Cotic1, P Forkel1, A B Imhoff2

  • 1Abteilung für Sportorthopädie, Klinikum Rechts der Isar, TU München, Ismaninger Str. 22, 81675, München, Deutschland.

Operative Orthopadie Und Traumatologie
|February 1, 2017
PubMed
Summary
This summary is machine-generated.

This study demonstrates that inlay arthroplasty for isolated trochlear resurfacing significantly improves patient outcomes for patellofemoral pain. The procedure preserves tibiofemoral joint health compared to onlay techniques.

Keywords:
Arthroplasty, knee replacementBone malalignmentOsteoarthritis, kneePatellofemoral jointProstheses and implants

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Area of Science:

  • Orthopedic surgery
  • Biomedical engineering
  • Knee joint biomechanics

Background:

  • Isolated patellofemoral osteoarthritis and osteochondral lesions present significant challenges in knee joint treatment.
  • Conservative and cartilage regeneration procedures often fail, necessitating surgical intervention.
  • Maintaining complex patellofemoral joint kinematics is crucial for successful treatment outcomes.

Purpose of the Study:

  • To evaluate the efficacy of isolated trochlear resurfacing using an inlay prosthesis.
  • To assess the impact of this technique on patellofemoral joint kinematics and tibiofemoral joint preservation.
  • To compare outcomes with traditional onlay patellofemoral arthroplasty.

Main Methods:

  • Prospective study of 29 patients undergoing inlay arthroplasty for isolated trochlear issues.
  • Surgical technique involves creating an implant bed based on trochlear curvature measurements and placing a recessed inlay prosthesis.
  • Postoperative management includes early range of motion exercises and progressive weight-bearing.

Main Results:

  • Significant improvements in WOMAC, IKDC, and VAS pain scores at 2-year follow-up (p < 0.05).
  • Inlay arthroplasty demonstrated better preservation of the tibiofemoral joint compared to onlay PF arthroplasty.
  • Reduced risk of tibiofemoral degeneration progression, potentially due to avoidance of patellofemoral overstuffing.

Conclusions:

  • Isolated trochlear resurfacing with inlay arthroplasty offers a viable solution for specific patellofemoral conditions.
  • The technique effectively improves patient-reported outcomes and joint function.
  • This method provides superior tibiofemoral joint preservation compared to onlay approaches, suggesting a more physiological restoration of knee biomechanics.